Since having to sit for ages with leg elevated and ice packs due to damaging my Achilles tendon plus ibruphgen tablets for the pain I ve developed a pain in my stomach just below and a little right of my belly button. Not always there if I m still but if I twist or bend or just after eating I feel it. Could this be an ulcer? I consider I eat healthily , fresh fruit, veg and salad, herbal teas ,and until lately very active, bit afraid to do Pilates in case it pulls and makes my pain worse?